Just finished a novel, _Neanderthal_, by Darnton. Premise is that
Neanderthals survive in the Pamirs, a high mountain range on Himilayan
plateau near southern Russia, Afghanistan, etc. His basic point was
that being intelligent and also evolved for survival in the ice age,
they could live on in the high mountains. He cites reports of the
"Alma" and, of course, the "Yeti" in this region as evidence.
Similar premise to be found in Crichton's _Eaters of the Dead_.